Demountable-rim remover.



J. L. NISW ANDER.

DEMOUNTABLE RIM REMOVER.

APPLICATION FILED NOV- 7.1917;

Patented Au 6, 1918.

2 SHEET8SHEET 1.

J. L. NISWANDER. DEMOUNTABLE RiMREMOVER.

SHEET 2.

APPLICATION FILED NOV- 1.1917.

Patented Au 2 SHEETS UNIT STATES PATENT orr cn JOHN L. NISWANDER, F QUINCY, ILL IN-OIS.

DEMOUNTABLE-RIM REMOVER.

: To all whom it my concern Be it known that 1, JOHN LNISWANDER, a citizen of the United States, resident of Quincy, in the county of Adams and State of Illinois,-have made a certain new and .useful Invention in "Demountable-R-im 'Re- ;movers; and I declare the following to be a full, clear, and exact description of the same, such as will enable Others skilled in use the invention,

inherent resiliency to grip the same.

the art t :which it appertains to make and reference being had to the accompanyin rawings, and to letters or figures of re erence marked thereon, form a part of this specification.

.Figure 1 is a side V16W Of the invention asapplied, to remove the mm, the portion of purpose. The inventlon consists in the novel construction and combinations of parts, as'

hereinafter set forth;

In the accompanying drawings, illustratthe invention, the numeral 2 designates the tire and, 3 the demountable rim, split at 4 in the usual way, -and which, as well known, is difiicult of removal and replacement, .owing to the necessary stiffness and strength of .the parts. 'The shank-or body of end portions of which are screwthreaded at 5, 5, in opposite directions, a hand wheel or turnbuckle 6 engaging the threaded portions ofthese rods.

'The grippingmembers or rim hooks of the device consist each of diverging branches 7 7 having reversely turned or hooked ends 8, 8, designed to engage branches being sprung over these rim portions and automatica'ly contracting illll'0rli%ll 1e diverging branches of each gripper have parallelin'ner portions 9, 9, bent at obtuse angles thereto at 9',

bolts 10 connectingthe parallel portions w Specification of Letters Patent;

which the device consists of two longitudinally alined rods 4', 4', the opposed with the opposite laterally projecting portions of the rim, the

of the branches together and PatentedAug. c, 1918.

. Application filedfiovember 7, 1917. Serial No. 200,807.

end bolts 11 connecting the branches of each gripper pivotally to the outer end portions of the rods l, 4:.

Each rim gripper has thereto inclined braces or struts 12, 12, extending transversely of the branches 7, 7 one0f said braces upon each gripper being always in position to take biting engagement with the inner surface of the rim in the op eration of the device.

'In the use of the device to remove a rim, the grippers are pushed to hook over the. demountable rim and, the length of the rods 4 being correct, these rippers, being preferably of flatn etal, wi l tend to assume a position substantially radial with respect to the rim and wheel, the braces 12, having contact with the inner surface of therim, acting in a manner to limit the outward movement of the'grippers. In this operation, the by the hub extensions 6 hand holds afforded of the hand wheel 6 are of assistance. The angular relation of the] grippers is now altered slightly, to bring the inner braces 12 into biting engagement with the rim.

The hand wheel being now rotated to adjust the rods 4 toward each other,-the radial relation of the grippers 7 to the wheel will be substantially preserved by the biting engagement of the braces 12 with the rim. 'In other words, the tendency of the normally substantially under strain an angular relation to the alined rods 4t more nearly in line therewith will be eflectua-lly resisted by the braces.

In replacing a rim upon a tire, the hand wheel is adjusted reversely, to adjust the rods away from each other, the braces located upon the outer'sides of the grippers grippers to move toward each other under strain.

By means otthis device the demountable rim may be contracted from one to four inches by an even and steady pull, the grippers and the rim braces gripping the rim more ti htly as the pull is increased. These rim hodks or grippers, being made of spring steel, will adjust themselves to any width of rim. The grippers catch the rim at both circumferential edges thereby avoiding danger of distortion of the rim, and there being an equal pull exerted upon both sides radial grippers to assume rigidly connected pivotally connected to rod and made up of diverging resilient of the rim, danger of spinning the rim in the tire and tearing the inner tube isobviated, p I

The weight of the device is but 2. pounds, and it folds to a length of nine inches,';being adapted car.

I Claim:

1. A device for removing and replacing demountable rims of vehicle tires, consisting of alined rods oppositely screw-threaded, a turnbuckle connecting said rods, a gripper the outer end of each shanks having hooked outer ends and parallel approximated inner ends and an inclinjed brace the inner end of which is located between and rigidly connected to the inner ends of the gripper shanks, each gripper having substantially radial relation to the tire and adapted to be sprung over the rim, said brace having at its outer end biting engagement With the inner surface of the rim.

- pivotally mounted to be carried in the tool 'box;o r 'tlie 9:1 am" I 2. A device for removing and replacing demountable rims of vehicle tires, consisting of alined rods oppositely screw-threaded, a turnbuckle connecting said rods, a gripper at the outer end of each rod and composed of diverging resilient shanks having hooked outer ends and par-' allel approximated inner ends, and oppositely inclined braces for each gripper and the inner ends of Which are located between and rigidly connected to the inner ends of the gripper shanks, each stantially radial relation to the tire and adapted to be sprung over the rim, the braces of each gripper having alternative biting engagement With the inner surface of the rim in removing and in replacin the same.

In testimony whereof I aifix my signature in presence of tWo Witnesses.

TOHN L. 'NISWANDER.

Witnesses:

FRED. N. BENER LYMAN MQCARL.

gripper having sub- 

